using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace ProcessDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            do
            {
                Thread.Sleep(100);
                progressBar1.PerformStep();
            } while (progressBar1.Value <= progressBar1.Maximum);
            progressBar1.Value = 0;
        }
    }
}